Legendary astronaut-turned-reality TV star Buzz Aldrin is facing a lawsuit from his estranged wife just days after he filed for divorce.Aldrin, who was the second man to walk on the Moon, has split from his third wife Lois Driggs Cannon after 23 years and cited "irreconcilable differences" in legal papers earlier this month (Jun11). Now Lois, along with the pair's daughter Lisa Cannon, has filed suit against Aldrin claiming he breached a contract by allegedly urging their joint business contacts to stop relations with StarBuzz, which he co-owns with both Lois and Lisa. The Cannons insist the public relations company helped Aldrin regain his notoriety, reports Tmz.com.